Modify

Opened 7 years ago

Closed 7 years ago

#9799 closed defect (fixed)

Throughput Regression on wzr-hp-g300nh

Reported by: antonlacon@… Owned by: developers
Priority: normal Milestone: Backfire 10.03.1
Component: kernel Version: Backfire 10.03.1 RC5
Keywords: Cc:

Description

I have a throughput regression on a wzr-hp-g300nh under both an svn pull of RC5 (r27721) and trunk (r27572 and r27738).

From the WAN:
Download appears to max at 120KBps.
Upload appears to be under 10KBps.

LAN performance between clients is unknown; I have little local traffic to judge.

My last known good build was trunk (r27043). For comparison:
Download max is 420KBps.
Upload max is 260KBps.

All transfer speeds were between the same server/client. I'm fairly certain the download speed under r27043 is at the server's upload cap (max download from other servers is around 4MB/s).

The slowdown appears for both wireless and wired clients. This doesn't degrade over time; it's poor from the start.

dmesg after booting RC5:
{{{BusyBox v1.15.3 (2011-07-23 22:52:10 PDT) built-in shell (ash)
Enter 'help' for a list of built-in commands.

_

| |.-----.-----.-----.| | | |.----.| |_

| - |_
_ | -| | | _ _|
|_||| ||

|| W I R E L E S S F R E E D O M

Backfire (10.03.1-RC5, r27721) --------------------------

  • 1/3 shot Kahlua In a shot glass, layer Kahlua
  • 1/3 shot Bailey's on the bottom, then Bailey's,
  • 1/3 shot Vodka then Vodka.

---------------------------------------------------

root@OpenWrt:~# dmesg
Linux version 2.6.32.27 (ian@command) (gcc version 4.3.3 (GCC) ) #1 Sat Jul 23 23:43:12 PDT 2011
prom: fw_arg0=00000007, fw_arg1=a3f57fb0, fw_arg2=a3f58480, fw_arg3=00000020
MyLoader: sysp=00000000, boardp=00000000, parts=00000000
bootconsole [early0] enabled
CPU revision is: 00019374 (MIPS 24Kc)
Atheros AR9132 rev 2, CPU:400.000 MHz, AHB:200.000 MHz, DDR:400.000 MHz
Determined physical RAM map:

memory: 04000000 @ 00000000 (usable)

Initrd not found or empty - disabling initrd
Zone PFN ranges:

Normal 0x00000000 -> 0x00004000

Movable zone start PFN for each node
early_node_map[1] active PFN ranges

0: 0x00000000 -> 0x00004000

On node 0 totalpages: 16384
free_area_init_node: node 0, pgdat 802c7fa0, node_mem_map 81000000

Normal zone: 128 pages used for memmap
Normal zone: 0 pages reserved
Normal zone: 16256 pages, LIFO batch:3

Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256
Kernel command line: rootfstype=squashfs,yaffs,jffs2 noinitrd console=ttyS0,115200 board=WZR-HP-G300NH
PID hash table entries: 256 (order: -2, 1024 bytes)
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
Writing ErrCtl register=00000000
Readback ErrCtl register=00000000
Memory: 61788k/65536k available (2061k kernel code, 3676k reserved, 404k data, 148k init, 0k highmem)
SLUB: Genslabs=7, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Hierarchical RCU implementation.
NR_IRQS:56
Calibrating delay loop... 266.24 BogoMIPS (lpj=1331200)
Mount-cache hash table entries: 512
NET: Registered protocol family 16
MIPS: machine is Buffalo WZR-HP-G300NH
bio: create slab <bio-0> at 0
Switching to clocksource MIPS
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 2048 (order: 2, 16384 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
TCP reno registered
NET: Registered protocol family 1
squashfs: version 4.0 (2009/01/31) Phillip Lougher
Registering mini_fo version $Id$
JFFS2 version 2.2. (NAND) (SUMMARY) © 2001-2006 Red Hat, Inc.
yaffs Jul 23 2011 23:38:53 Installing.
msgmni has been set to 120
io scheduler noop registered
io scheduler deadline registered (default)
Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled
serial8250.0: ttyS0 at MMIO 0x18020000 (irq = 11) is a 16550A
console [ttyS0] enabled, bootconsole disabled
ar91xx-flash ar91xx-flash: 02000000 at 1e000000
ar91xx-flash: Found 1 x16 devices at 0x0 in 16-bit bank

CFI mfr 0x00000001
CFI id 0x00002201
Amd/Fujitsu Extended Query Table at 0x0040

Amd/Fujitsu Extended Query version 1.3.

ar91xx-flash: CFI does not contain boot bank location. Assuming top.
number of CFI chips: 1
cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness.
ar91xx-flash ar91xx-flash: using static partition mapping
Creating 7 MTD partitions on "ar91xx-flash":
0x000000000000-0x000000040000 : "u-boot"
0x000000040000-0x000000060000 : "u-boot-env"
0x000000060000-0x000000160000 : "kernel"
0x000000160000-0x000001fc0000 : "rootfs"
mtd: partition "rootfs" set to be root filesystem
mtd: partition "rootfs_data" created automatically, ofs=760000, len=1860000
0x000000760000-0x000001fc0000 : "rootfs_data"
0x000001fc0000-0x000001fe0000 : "user_property"
0x000001fe0000-0x000002000000 : "art"
0x000000060000-0x000001fc0000 : "firmware"
Atheros AR71xx SPI Controller driver version 0.2.4
Realtek RTL8366S ethernet switch driver version 0.2.2
rtl8366s rtl8366s: using GPIO pins 19 (SDA) and 20 (SCK)
rtl8366s rtl8366s: RTL8366 ver. 1 chip found
rtl8366s: probed
eth0: Atheros AG71xx at 0xb9000000, irq 4
eth0: using fixed link parameters
eth1: Atheros AG71xx at 0xba000000, irq 5
eth1: connected to PHY at rtl8366s:04 [uid=001cc960, driver=Realtek RTL8366S]
Atheros AR71xx hardware watchdog driver version 0.1.0
ar71xx-wdt: timeout=15 secs (max=21)
TCP westwood registered
NET: Registered protocol family 17
802.1Q VLAN Support v1.8 Ben Greear <greearb@…>
All bugs added by David S. Miller <davem@…>
VFS: Mounted root (squashfs filesystem) readonly on device 31:3.
Freeing unused kernel memory: 148k freed
Please be patient, while OpenWrt loads ...
input: gpio-buttons as /devices/platform/gpio-buttons/input/input0
Button Hotplug driver version 0.3.1
ar71xx: pll_reg 0xb8050014: 0x1e000100
eth0: link up (1000Mbps/Full duplex)
Registered led device: wzr-hp-g300nh:orange:security
Registered led device: wzr-hp-g300nh:green:wireless
Registered led device: wzr-hp-g300nh:green:router
Registered led device: wzr-hp-g300nh:red:diag
Registered led device: wzr-hp-g300nh:blue:usb
mini_fo: using base directory: /
mini_fo: using storage directory: /overlay
eth0: link down
ar71xx: pll_reg 0xb8050014: 0x1e000100
eth0: link up (1000Mbps/Full duplex)
device eth0 entered promiscuous mode
br-lan: port 1(eth0) entering forwarding state
Compat-wireless backport release: compat-wireless-2011-06-23
Backport based on wireless-testing.git master-2011-06-22
cfg80211: Calling CRDA to update world regulatory domain
cfg80211: World regulatory domain updated:
cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
SCSI subsystem initialized
ar71xx: pll_reg 0xb8050018: 0x13000a44
eth1: link up (100Mbps/Full duplex)
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
ath: EEPROM regdomain: 0x0
ath: EEPROM indicates default country code should be used
ath: doing EEPROM country->regdmn map search
ath: country maps to regdmn code: 0x3a
ath: Country alpha2 being used: US
ath: Regpair used: 0x3a
ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
ieee80211 phy0: Atheros AR9100 MAC/BB Rev:7 AR2133 RF Rev:a2 mem=0xb80c0000, irq=2
cfg80211: Calling CRDA for country: US
cfg80211: Regulatory domain changed to country: US
cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211: (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211: (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
PPP generic driver version 2.4.2
tun: Universal TUN/TAP device driver, 1.6
tun: (C) 1999-2004 Max Krasnyansky <maxk@…>
ip_tables: (C) 2000-2006 Netfilter Core Team
NET: Registered protocol family 24
IMQ driver loaded successfully.

Hooking IMQ before NAT on PREROUTING.
Hooking IMQ after NAT on POSTROUTING.

ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ar71xx-ehci ar71xx-ehci: Atheros AR91xx built-in EHCI controller
ar71xx-ehci ar71xx-ehci: new USB bus registered, assigned bus number 1
ar71xx-ehci ar71xx-ehci: irq 3, io mem 0x1b000000
ar71xx-ehci ar71xx-ehci: USB 2.0 started, EHCI 1.00
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
nf_conntrack version 0.5.0 (968 buckets, 3872 max)
CONFIG_NF_CT_ACCT is deprecated and will be removed soon. Please use
nf_conntrack.acct=1 kernel parameter, acct=1 nf_conntrack module option or
sysctl net.netfilter.nf_conntrack_acct=1 to enable it.
xt_time: kernel timezone is -0000
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
device wlan0 entered promiscuous mode
br-lan: port 2(wlan0) entering forwarding state
device wlan0 left promiscuous mode
br-lan: port 2(wlan0) entering disabled state
device wlan0 entered promiscuous mode
br-lan: port 2(wlan0) entering forwarding state
ar71xx-wdt: enabling watchdog timer}}}

Attachments (0)

Change History (4)

comment:1 Changed 7 years ago by anonymous

dmesg with the, hopefully, correct formatting:

BusyBox v1.15.3 (2011-07-23 22:52:10 PDT) built-in shell (ash)
Enter 'help' for a list of built-in commands.

  _______                     ________        __
 |       |.-----.-----.-----.|  |  |  |.----.|  |_
 |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
 |_______||   __|_____|__|__||________||__|  |____|
          |__| W I R E L E S S   F R E E D O M
 Backfire (10.03.1-RC5, r27721) --------------------------
  * 1/3 shot Kahlua    In a shot glass, layer Kahlua 
  * 1/3 shot Bailey's  on the bottom, then Bailey's, 
  * 1/3 shot Vodka     then Vodka.
 ---------------------------------------------------
root@OpenWrt:~# dmesg
Linux version 2.6.32.27 (ian@command) (gcc version 4.3.3 (GCC) ) #1 Sat Jul 23 23:43:12 PDT 2011
prom: fw_arg0=00000007, fw_arg1=a3f57fb0, fw_arg2=a3f58480, fw_arg3=00000020
MyLoader: sysp=00000000, boardp=00000000, parts=00000000
bootconsole [early0] enabled
CPU revision is: 00019374 (MIPS 24Kc)
Atheros AR9132 rev 2, CPU:400.000 MHz, AHB:200.000 MHz, DDR:400.000 MHz
Determined physical RAM map:
 memory: 04000000 @ 00000000 (usable)
Initrd not found or empty - disabling initrd
Zone PFN ranges:
  Normal   0x00000000 -> 0x00004000
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
    0: 0x00000000 -> 0x00004000
On node 0 totalpages: 16384
free_area_init_node: node 0, pgdat 802c7fa0, node_mem_map 81000000
  Normal zone: 128 pages used for memmap
  Normal zone: 0 pages reserved
  Normal zone: 16256 pages, LIFO batch:3
Built 1 zonelists in Zone order, mobility grouping on.  Total pages: 16256
Kernel command line: rootfstype=squashfs,yaffs,jffs2 noinitrd console=ttyS0,115200 board=WZR-HP-G300NH
PID hash table entries: 256 (order: -2, 1024 bytes)
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Primary instruction cache 64kB, VIPT, 4-way, linesize 32 bytes.
Primary data cache 32kB, 4-way, VIPT, cache aliases, linesize 32 bytes
Writing ErrCtl register=00000000
Readback ErrCtl register=00000000
Memory: 61788k/65536k available (2061k kernel code, 3676k reserved, 404k data, 148k init, 0k highmem)
SLUB: Genslabs=7, HWalign=32, Order=0-3, MinObjects=0, CPUs=1, Nodes=1
Hierarchical RCU implementation.
NR_IRQS:56
Calibrating delay loop... 266.24 BogoMIPS (lpj=1331200)
Mount-cache hash table entries: 512
NET: Registered protocol family 16
MIPS: machine is Buffalo WZR-HP-G300NH
bio: create slab <bio-0> at 0
Switching to clocksource MIPS
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 2048 (order: 2, 16384 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
TCP reno registered
NET: Registered protocol family 1
squashfs: version 4.0 (2009/01/31) Phillip Lougher
Registering mini_fo version $Id$
JFFS2 version 2.2. (NAND) (SUMMARY)  © 2001-2006 Red Hat, Inc.
yaffs Jul 23 2011 23:38:53 Installing. 
msgmni has been set to 120
io scheduler noop registered
io scheduler deadline registered (default)
Serial: 8250/16550 driver, 1 ports, IRQ sharing disabled
serial8250.0: ttyS0 at MMIO 0x18020000 (irq = 11) is a 16550A
console [ttyS0] enabled, bootconsole disabled
ar91xx-flash ar91xx-flash: 02000000 at 1e000000
ar91xx-flash: Found 1 x16 devices at 0x0 in 16-bit bank
 CFI mfr 0x00000001
 CFI id  0x00002201
 Amd/Fujitsu Extended Query Table at 0x0040
  Amd/Fujitsu Extended Query version 1.3.
ar91xx-flash: CFI does not contain boot bank location. Assuming top.
number of CFI chips: 1
cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness.
ar91xx-flash ar91xx-flash: using static partition mapping
Creating 7 MTD partitions on "ar91xx-flash":
0x000000000000-0x000000040000 : "u-boot"
0x000000040000-0x000000060000 : "u-boot-env"
0x000000060000-0x000000160000 : "kernel"
0x000000160000-0x000001fc0000 : "rootfs"
mtd: partition "rootfs" set to be root filesystem
mtd: partition "rootfs_data" created automatically, ofs=760000, len=1860000 
0x000000760000-0x000001fc0000 : "rootfs_data"
0x000001fc0000-0x000001fe0000 : "user_property"
0x000001fe0000-0x000002000000 : "art"
0x000000060000-0x000001fc0000 : "firmware"
Atheros AR71xx SPI Controller driver version 0.2.4
Realtek RTL8366S ethernet switch driver version 0.2.2
rtl8366s rtl8366s: using GPIO pins 19 (SDA) and 20 (SCK)
rtl8366s rtl8366s: RTL8366 ver. 1 chip found
rtl8366s: probed
eth0: Atheros AG71xx at 0xb9000000, irq 4
eth0: using fixed link parameters
eth1: Atheros AG71xx at 0xba000000, irq 5
eth1: connected to PHY at rtl8366s:04 [uid=001cc960, driver=Realtek RTL8366S]
Atheros AR71xx hardware watchdog driver version 0.1.0
ar71xx-wdt: timeout=15 secs (max=21)
TCP westwood registered
NET: Registered protocol family 17
802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
All bugs added by David S. Miller <davem@redhat.com>
VFS: Mounted root (squashfs filesystem) readonly on device 31:3.
Freeing unused kernel memory: 148k freed
Please be patient, while OpenWrt loads ...
input: gpio-buttons as /devices/platform/gpio-buttons/input/input0
Button Hotplug driver version 0.3.1
ar71xx: pll_reg 0xb8050014: 0x1e000100
eth0: link up (1000Mbps/Full duplex)
Registered led device: wzr-hp-g300nh:orange:security
Registered led device: wzr-hp-g300nh:green:wireless
Registered led device: wzr-hp-g300nh:green:router
Registered led device: wzr-hp-g300nh:red:diag
Registered led device: wzr-hp-g300nh:blue:usb
mini_fo: using base directory: /
mini_fo: using storage directory: /overlay
eth0: link down
ar71xx: pll_reg 0xb8050014: 0x1e000100
eth0: link up (1000Mbps/Full duplex)
device eth0 entered promiscuous mode
br-lan: port 1(eth0) entering forwarding state
Compat-wireless backport release: compat-wireless-2011-06-23
Backport based on wireless-testing.git master-2011-06-22
cfg80211: Calling CRDA to update world regulatory domain
cfg80211: World regulatory domain updated:
cfg80211:     (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211:     (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
cfg80211:     (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
SCSI subsystem initialized
ar71xx: pll_reg 0xb8050018: 0x13000a44
eth1: link up (100Mbps/Full duplex)
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
ath: EEPROM regdomain: 0x0
ath: EEPROM indicates default country code should be used
ath: doing EEPROM country->regdmn map search
ath: country maps to regdmn code: 0x3a
ath: Country alpha2 being used: US
ath: Regpair used: 0x3a
ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
ieee80211 phy0: Atheros AR9100 MAC/BB Rev:7 AR2133 RF Rev:a2 mem=0xb80c0000, irq=2
cfg80211: Calling CRDA for country: US
cfg80211: Regulatory domain changed to country: US
cfg80211:     (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
cfg80211:     (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211:     (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211:     (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
PPP generic driver version 2.4.2
tun: Universal TUN/TAP device driver, 1.6
tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
ip_tables: (C) 2000-2006 Netfilter Core Team
NET: Registered protocol family 24
IMQ driver loaded successfully.
        Hooking IMQ before NAT on PREROUTING.
        Hooking IMQ after NAT on POSTROUTING.
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ar71xx-ehci ar71xx-ehci: Atheros AR91xx built-in EHCI controller
ar71xx-ehci ar71xx-ehci: new USB bus registered, assigned bus number 1
ar71xx-ehci ar71xx-ehci: irq 3, io mem 0x1b000000
ar71xx-ehci ar71xx-ehci: USB 2.0 started, EHCI 1.00
usb usb1: configuration #1 chosen from 1 choice
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
nf_conntrack version 0.5.0 (968 buckets, 3872 max)
CONFIG_NF_CT_ACCT is deprecated and will be removed soon. Please use
nf_conntrack.acct=1 kernel parameter, acct=1 nf_conntrack module option or
sysctl net.netfilter.nf_conntrack_acct=1 to enable it.
xt_time: kernel timezone is -0000
Initializing USB Mass Storage driver...
usbcore: registered new interface driver usb-storage
USB Mass Storage support registered.
device wlan0 entered promiscuous mode
br-lan: port 2(wlan0) entering forwarding state
device wlan0 left promiscuous mode
br-lan: port 2(wlan0) entering disabled state
device wlan0 entered promiscuous mode
br-lan: port 2(wlan0) entering forwarding state
ar71xx-wdt: enabling watchdog timer

comment:2 Changed 7 years ago by nbd

Is QoS enabled in the default configuration in your image?

comment:3 Changed 7 years ago by antonlacon@…

I didn't keep the image. QoS was in my config, and I had not tinkered with any of the default settings for it.

I built tonight's backfire svn (r27837) and performance is good again.

comment:4 Changed 7 years ago by nbd

  • Resolution set to fixed
  • Status changed from new to closed

Add Comment

Modify Ticket

Action
as closed .
The resolution will be deleted. Next status will be 'reopened'.
Author


E-mail address and user name can be saved in the Preferences.

 
Note: See TracTickets for help on using tickets.